Model “20SR / 20SRC”

Frames — 4" x 4 gauge steel channel with bolted cross Nominal Width Model Roller 10' 5' members, powder painted. Rollers set ¼" high. Roller Between No. Centers Weight Weight Length Frames (Inches) (lbs.) (lbs.) Rollers - 2½" x 11 gauge steel tubing with swaged bearings. 251SR-13-3 3 364 185 Bearings - Labyrinth sealed and grease packed. 251SR-13-4 4 303 155 12" 13" 251SR-13-6 6 242 125 Axles - 11⁄16" hex shaft, spring-loaded. 251SR-13-9 9 212 113 Couplings - Splice plates, for bolting sections together. 251SR-13-12 12 182 95 Widths - 13" between frames (B/F) and wider in two inch incre- 251SR-15-3 3 395 202 251SR-15-4 4 327 168 ments up to 27" between frames. Also 31", 33", 37", 39", 45", 51", 14" 15" 251SR-15-6 6 259 134 55" and 59" between frames. 251SR-15-9 9 225 120 Lengths - 10' and 5' straight sections. 251SR-15-12 12 191 100 251SR-17-3 3 427 218 Curve - 45° and 90° with 2' 8½" inside radius for widths up to 251SR-17-4 4 351 180 27" between frames. 4'0" inside radius for 31", 33", 37", and 39" 16" 17" 251SR-17-6 6 276 142 between frames. Note: tapered roller curves standard, with a 251SR-17-9 9 238 127 39” inside radius and 5” deep set high frame. 251SR-17 12 12 200 104 251SR-19-3 3 458 234 Capacity - 650 pounds per roller with 3,750 pounds maximum 251SR-19-4 4 375 192 distributed live load over 10 feet for 12" nominal roll to 3,500 18" 19" 251SR-19-6 6 292 151 pounds on widest sizes; 8,000 pounds maximum distributed 251SR-19-9 9 251 134 live load over 5' lengths. Curve sections same as 10'. All capaci- 251SR-19-12 12 209 110 251SR-23-3 3 521 266 ties based on 3" centers. 251SR-23-4 4 423 217 22" 23" 251SR-23-6 6 325 168 251SR-23-9 9 276 149 251SR-23-12 12 227 120 CURVED SECTIONS - WEIGHTS 251SR-27-3 3 583 289 Nominal Width 251SR-27-4 4 471 242 Roller Between Model 90° 45° 26" 27" 251SR-27-6 6 358 186 Length Frames No. Weight Weight 251SR-27-9 9 302 163 (Inches) (Inches) (For 90°) (Ibs.) (Ibs.) 251SR-27-12 12 246 129 Single 12 13 251SRC-13-90S 165 84 251SR-31-3 3 646 331 Roller 14 15 251SRC-15-90S 180 91 251SR-31-4 4 519 267 16 Per 16 17 251SRC-17-90S 195 99 30" 31" 251SR-31-6 6 391 203 90° 18 19 251SRC-19-90S 210 106 251SR-31-9 9 328 178 Curve 22 23 251SRC-23-90S 240 121 251SR-31 12 12 264 139 26 27 251SRC-27-90S 270 136 251SR-33-3 3 679 347 251SR-33-4 4 544 280 Double 30* 31 251SRC-31-90D 400 216 32" 33" 251SR-33-6 6 409 213 Rollers 32* 33 251SRC-33-90D 418 236 251SR-33-9 9 341 185 37 Per 36* 37 251SRC-37-90D 453 245 251SR-33-12 12 273 145 90°Curve 38* 39 251SRC-39-90D 471 255 251SR-37-3 3 740 379 251SR-37-4 4 590 304 *4'0" inside radius. All others 2' 8 ½" inside radius. 36" 37" 251SR-37-6 6 441 229 251SR-37-9 9 366 199 251SR-37-12 12 291 154 251SR-39-3 3 771 395 251SR-39-4 4 614 316 38" 39" 251SR-39-6 6 457 238 OVERALL WIDTH 251SR-39-9 9 379 207 WIDTH BETWEEN RAILS 251SR-39-12 12 300 159 251SR-45-3 3 863 443 (optional) SET LOW 251SR-45-4 4 694 352 0.75" SET HIGH NOMINAL 44" 45" 251SR-45-6 6 473 291 0.25" ROLLER LENGTH 251SR-45-9 9 417 229 251SR-45-12 12 327 173 251SR-51-3 3 955 491 251SR-51-4 4 754 388 5" 4 GA 4" 50" 51" 251SR-51-6 6 489 344 251SR-51-9 9 455 251 251SR-51-12 12 354 187 0.6875" HEX SHAFT 251SR-55-3 3 1016 523 251SR-55-4 4 800 412 54" 55" 251SR-55-6 6 521 360 251SR-55-9 9 480 265 251SR-55-12 12 372 196 251SR-59-3 3 1077 555 251SR-59-4 4 846 436 58" 59" 251SR-59-6 6 553 376 251SR-59-9 9 505 279 251SR-59-12 12 309 205